The GIGABYTE B550M DS3H AX is a Micro-ATX motherboard built on the AMD B550 chipset for AMD Ryzen™ AM4 processors. It offers PCIe® 4.0 support, dual M.2 NVMe slots, built-in Wi-Fi 6 and Bluetooth 5.3, RGB Fusion lighting support, and reliable connectivity for gaming, productivity, and modern desktop PC builds.

Key Specifications

Chipset: AMD B550
CPU Socket: AM4
Form Factor: Micro-ATX (24.4 cm × 24.4 cm)

Supported Processors

Supports:

• AMD Ryzen™ 5000 Series Processors
• AMD Ryzen™ 5000 G-Series Processors
• AMD Ryzen™ 4000 G-Series Processors
• AMD Ryzen™ 3000 Series Processors
• AMD Ryzen™ 3000 G-Series Processors

Memory Support

Memory Type: DDR4
Memory Slots: 4 x DIMM
Maximum Memory Capacity: 128 GB

Supported Memory Speeds

• DDR4-3200
• DDR4-2933
• DDR4-2667
• DDR4-2400
• DDR4-2133

Memory Features

• Dual Channel Memory Architecture
• XMP Support
• ECC Un-buffered DIMM Support
• Non-ECC Un-buffered DIMM Support

Graphics Support

Integrated graphics support available with compatible Ryzen™ APUs.

Video Outputs

• 1 x DisplayPort
• 1 x HDMI Port

Maximum Resolution Support

DisplayPort: Up to 5120 × 2880 @ 60Hz
HDMI: Up to 4096 × 2160 @ 60Hz

Graphics Features

• DisplayPort 1.4 Support
• HDMI 2.1 Support
• HDCP 2.3 Support
• HDR Support
• Maximum Shared Memory: 16 GB

Audio Features

Audio Codec: Realtek® ALC1220

Audio Support

• High Definition Audio
• 2 / 4 / 5.1 / 7.1 Channel Audio
• DSD Audio Support via Line-Out Jack

Networking & Wireless

LAN

• Realtek® Gigabit LAN

Wireless Connectivity

• Realtek® Wi-Fi 6 RTL8851BE
• Wi-Fi 802.11 a/b/g/n/ac/ax
• Dual-Band 2.4GHz / 5GHz
• Bluetooth 5.3

Expansion Slots

CPU Integrated

• 1 x PCIe 4.0 x16 Slot
• Ryzen™ 5000/3000 CPUs support PCIe 4.0 x16
• Ryzen™ G-Series CPUs support PCIe 3.0 x16

Chipset Integrated

• 1 x PCIe 3.0 x16 Slot (x4 mode)
• 1 x PCIe 3.0 x1 Slot

Storage Features

M.2 Slots

CPU M.2 Slot:

• Supports PCIe 4.0 x4/x2 & SATA SSDs
• Supports Type 2280 SSDs

Chipset M.2 Slot:

• Supports PCIe 3.0 x2 & SATA SSDs
• Supports Type 2280 SSDs

SATA Storage

• 4 x SATA 6Gb/s Ports

RAID Support

• RAID 0
• RAID 1
• RAID 10

USB Connectivity

Rear USB Ports

• 4 x USB 3.2 Gen 1 Ports
• 2 x USB 2.0 Ports

Internal USB Headers

• 1 x USB Type-C® Header
• 1 x USB 3.2 Gen 1 Header
• 1 x USB 2.0 Header

Internal I/O Connectors

• 1 x 24-pin ATX Power Connector
• 1 x 8-pin CPU Power Connector
• 1 x CPU Fan Header
• 2 x System Fan Headers
• 2 x Addressable RGB Headers
• 2 x RGB LED Headers
• 1 x CPU RGB Header
• 2 x M.2 Slots
• 4 x SATA Ports
• 1 x Front Panel Header
• 1 x Front Panel Audio Header
• 1 x USB Type-C® Header
• 1 x TPM Header
• 1 x Serial Port Header
• 1 x Clear CMOS Jumper
• 1 x Q-Flash Plus Button

Back Panel Ports

• 2 x USB 2.0 Ports
• 4 x USB 3.2 Gen 1 Ports
• 1 x PS/2 Keyboard/Mouse Port
• 1 x HDMI Port
• 1 x DisplayPort
• 1 x RJ-45 LAN Port
• 2 x Wi-Fi Antenna Connectors
• 3 x Audio Jacks

RGB & Software Features

RGB Support

• RGB Fusion
• RGB LED Headers
• Addressable RGB Headers

GIGABYTE Utilities

• APP Center
• @BIOS
• EasyTune
• RGB Fusion
• Smart Backup
• System Information Viewer
• Q-Flash
• Q-Flash Plus

Hardware Monitoring Features

• Voltage Detection
• Temperature Detection
• Fan Speed Detection
• Overheating Warning
• Fan Fail Warning
• Smart Fan Speed Control

BIOS Features

• 128 Mbit AMI UEFI BIOS
• ACPI 5.0 Support
• DMI 2.7
• PnP 1.0a

Operating System Support

• Windows® 11 64-bit
• Windows® 10 64-bit

Included Software

• Norton® Internet Security (OEM Version)
• LAN Bandwidth Management Software

Warranty & Important Note

Warranty: 3 Years

*Prices, features, and specifications are subject to change without prior notice.